Normalise std:cout when the tags aren't named correctly

Problem

• I have code to compare nodes in sets of XML files in folders


• In each folder is an A.xml and B.xml


• The nodes names will match for files in the same folder


• The node names will not match for files in different folders


• The std:cout must be consistent no matter what the input nodes are named.


• Standard mapping is id and description

example1 folder - a.xml and b.xml comparison output

<entry>
    <id><![CDATA[9]]></id>
    <description><![CDATA[Dolce 27 Speed]]></description>
    </entry>

example2 folder - a.xml and b.xml comparison output

<entry>
    <id><![CDATA[4]]></id>
    <content><![CDATA[Specialized Dolce Sport]]></content>
    </entry>

The problem here is a.xml and b.xml in the example2 folder use the mapping content which is wrong.

Possible solution

Each time I run the software I define mappings for the nodes (if they are different from default) like this description = content;.

Question

How can I normalise the output of std:cout for nodes which are named different to default, renaming the "content" tag so it is printed as "description" in this example.

Existing code

#include "pugi/pugixml.hpp"

#include <iostream>
#include <string>
#include <map>

int main() {
    pugi::xml_document doca, docb;
    std::map<std::string, pugi::xml_node> mapa, mapb;

    if (!doca.load_file("a.xml") || !docb.load_file("b.xml")) { 
        std::cout << "Can't find input files";
        return 1;
    }

    for (auto& node: doca.child("jobsite_vacancies").children("job")) {
        const char* id = node.child_value("id");
        mapa[id] = node;
    }

    for (auto& node: docb.child("jobsite_vacancies").children("job")) {
        const char* idcs = node.child_value("id");
        if (!mapa.erase(idcs)) {
            mapb[idcs] = node;
        }
    }

    for (auto& ea: mapa) {
        std::cout << "Removed:" << std::endl;
        ea.second.print(std::cout);
    }

    for (auto& eb: mapb) {
        std::cout << "Added:" << std::endl;
        eb.second.print(std::cout);
    }

}

I'm new to C++ so any suggestions on how to implement this would be appreciated. I have to run this on tens of thousands of fields so performance is key.